About us. Surelock McGill is a small business in Lexington, KY. We are professional, agile and our goal is to For over 60 years, Surelock McGill has been known around the world as a leading provider of high performance door hardware and accessories. We design and manufacture locking systems that meet a variety of security, operational and life safety needs. Our work environment includes. Modern office setting. The. Technical Product Specialist. i...